Searches should not be slow. We have a database with > 40K items and most searches are under 1 second (and we've never seen database locked when cancelling, although searches usually finish before they can be canceled). Please send as much info as possible from
https://www.kinook.com/Forum/showthread.php?t=3038
so we can investigate.
Also make sure
Tools | Option | Search | Match anywhere in word by default is unchecked.
https://kinook.com/UltraRecall/Manual/searchdialog.htm
Thanks.